This never expiring endorsement is key to advancing into larger, more powerful aircraft along your career.  In order to join the ranks of qualified pilots flying Bonanzas, 182s, Piper 6s, and other high-performance airplanes, you will need to receive and log ground and flight training from an authorized instructor in a high-performance airplane, and the Maule 260 is no exception. While this endorsement is included automatically in both the seaplane and tailwheel courses it is available as a standalone course as well.